C31231211111133131211113313331333133112111133132321123232212231   >>    C3123121111113313121111331333133313311211113313232112323221223   <<    C31231211111133131211113313331333133112111133132321123232212233   >>      C31231211111133131211113313331333133112111133132321123232212232   >>